Improvement in ruffling attachments for sewing-machines



2 S-heets--Sheet1.

I H MOSCHCQWHZ. Improvement in Ruffiing Attachment far Sewing; Machines1 Patented Feb. 20, 1872.

M w M 2Sheets-Sheet2. H.MOSCHCOWETZ.

lmpmvement in Ruffiing Attachment for Sewing Mchine's. N0.123,788.Patented Feb. 20, 1872.

UNITED STATES PATENT QFFICE.

HERMAN MOSOHOOWITZ, OF NEW YORK, N. Y.

IMPROVEMENT I'N RUFFLING ATTACHMENTS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 123,788, dated February20, 1 872.

\ SPEomIoA'rIoN.

I, HERMAN Mosoncowrrz, of the city, county,.and State of New York, haveinvented certain Improvements in Attachments for Sewing-Machines, ofwhich the following is a specification Nature and Objects of theInvention.

My invention relates to laying plaits to be sewed by a sewing-machine,and is so constructed as to be capable of being adjusted to lay plaitsof varying depths and at different distances apart from each other withgreat regularity and precision while the sewingmachine is in operationto operate the plaiter and stitch the plaits into place.

Description 0 the Drawing.

Figure l is a top or plan view of my plaiting attachment. Fig. 2 is aside view, showing the plaiting-fork at the right hand. Fig. 3 is anopposite-side view, showing the cam and set-screw; and Fig. 4 is afront-end view with the plaiting-fork drawn back in readiness tooperate. 7

General Description.

A is the bed or frame by which the attachment is secured to thesewing-machine, and upon which the partsare mounted; B, the arm which isoperated by the needle-arm of the sewing-machine, and which actuates theplaiting mechanism; 0, the cam that moves the plaiting-lever-andoperates the plaitingfork; D, the lever-arm actuated by cam G andconnected to plaiting-fork F; E, the brace or support'that supports thecase in which the handle of the fork slides; G, the case or slide inwhich the fork-handle moves, and is marked as a gauge to determine thesize of plaits; H, the connection between arm D and fork-handle I; J,the set-screw by which the space between the plaits is regulated; K, theratchetwheel to which cam O is attached, and which moves it; L, astandard, upon which ratchet K and cam O and arm B are mounted; M, thepost upon which arm D is pivoted; to, the pawl operating upon ratchet K;e, a spring operating the pawl a; b,-a spring coiled around post M, withone end fastened to the frame of the attachment and the other endfastened to arm I), and keeps the arm in contact with cam G; k, theset-screw in the end of arm D that regulates the depth of the plait; c,a spring that supports arm B against the needle-arm of thesewing-machine; d, the pin by which link H is connected with case G, andserves to gauge the size of plaits by the gauge marked upon case orslide Gr; m, the pivot upon which arm B works; n, the pivot to arm D; 0,the shaft upon which cam G and ratchet K operate; S, the step in earn 0by which the sudden motion of the fork is produced to form the plait.

The operation of my attachment is as follows: I secure it firmly to thebed-plate of a sewing-machine in such manner that a needle ,will passthrough the small slot near the end of the arm B. I then place thematerial to be plaited upon the machine, so as to receive the stitchesat the desired point, and let that portion of it that is to be plaitedextend under fork F. Then the sewing-machine is in operation, it carriesthe arm B downward with the needle-arm; and as the needle-arm rises, thearm is carried up by means of spring 0. As the arm B is carried down,the back end of it rises, and, the pawl, which is mounted on the backend, being in contact with the ratchet-teeth, it moves the cam (3around. This is repeated until the end of the lever-arm D, which is incontact with the cam, carries out the fork F upon the goods, until, whenthe back end of arm D comes to the step in the cam, it springs off,which throws the fork, and with it the goods, to the needle; and theplait thus formed is stitched in place, while the fork is being drawnback for another jump; and

this operation is repeated.

To regulate the width of plaits, move the set-screw k. To regulate thespace between the plaits, move the set-screw J.

Claims.

JOHN W. RIPLEY.

